<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		
		<script>
			// 数据 -> 状态
			// 需求变更:从10次Hello World变成Hello JavaScript
			// 定义变量前面必须加上:var -> variable(变量)
			var message = "Hello JavaScript";
			
			console.log(message);
			console.log(message);
			console.log(message);
			console.log(message);
			console.log(message);
			console.log(message);
			console.log(message);
			console.log(message);
			console.log(message);
			console.log(message);
			
			// 2.数字一:6 数字二:3
			var num1 = 6;
			var num2 = 2;
			console.log(num1 + num2);
			console.log(num1 - num2);
			console.log(num1 * num2);
			console.log(num1 / num2);
						
		</script>
	</body>
</html>
